Android: disable setting which keeps device screen on when plugged in

Question

How can I disable the development setting which prevents screen from turning off when plugged in?

Basically I want to detect user inactivity on an Android device by detecting when screen goes off, but if this setting is enabled this will never happen. From what I found, WRITE_SECURE_SETTINGS permission should be used (rooting device/using private APIs is not a problem).

Answer 1

You could try something like this:

Settings.System.putInt(getContentResolver(), Settings.System.STAY_ON_WHILE_PLUGGED_IN, 0);